Fig. 9
From: Processing optimization of PEDOT:PSS and PEDOT:PSS/Tween 80 films

Tween 80 degradation images showing the changes in color caused by higher temperature. Samples were held for 1 h at (a) 60, (b) 100, (c) 120, (d) 160, (e) 180, (f) 200 and (g) 220 °C